OBC DIVISION A · PART 2 — OBJECTIVESUpdated for the 2024 Ontario Building Code

Division A, Section 2.2 — Objectives

Full text of Section 2.2 (Objectives) — Division A, Part 2 (Objectives) of the 2024 Ontario Building Code, with every article reproduced below.

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2.2.1.1.

2.2.1.Objectives

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(1) The objectives of this Code are as follows: (See Note A-2.2.1.1.(1)) OS Safety An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in or adjacent to the building will be exposed to an unacceptable risk of injury. OS1 Fire Safety An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in or adjacent to the building will be exposed to an unacceptable risk of injury due to fire. The risks of injury due to fire addressed in this Code are those caused by— OS1.1 – fire or explosion occurring OS1.2 – fire or explosion impacting areas beyond its point of origin OS1.3 – collapse of physical elements due to a fire or explosion OS1.4 – fire safety systems failing to function as expected OS1.5 – persons being delayed in or impeded from moving to a safe place during a fire emergency OS2 Structural Safety An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in or adjacent to the building will be exposed to an unacceptable risk of injury due to structural failure. The risks of injury due to structural failure addressed in this Code are those caused by— OS2.1 – loads bearing on the building elements that exceed their loadbearing capacity OS2.2 – loads bearing on the building that exceed the loadbearing properties of the supporting medium OS2.3 – damage to or deterioration of building elements OS2.4 – vibration or deflection of building elements OS2.5 – instability of the building or part thereof OS2.6 – collapse of the excavation OS3 Safety in Use An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in or adjacent to the building will be exposed to an unacceptable risk of injury due to hazards. The risks of injury due to hazards addressed in this Code are those caused by— OS3.1 – tripping, slipping, falling, contact, drowning or collision OS3.2 – contact with hot surfaces or substances OS3.3 – contact with energized equipment OS3.4 – exposure to hazardous substances OS3.5 – exposure to high levels of sound from fire alarm systems OS3.6 – persons becoming trapped in confined spaces OS3.7 – persons being delayed in or impeded from moving to a safe place during an emergency (See Note A-2.2.1.1.(1)) OS4 Resistance to Unwanted Entry An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in the building will be exposed to an unacceptable risk of injury due to the building's low level of resistance to unwanted entry. The risks of injury due to unwanted entry addressed in this Code are those caused by— OS4.1 – intruders being able to force their way through locked doors or windows OS4.2 – occupants being unable to identify potential intruders as such OH Health An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person will be exposed to an unacceptable risk of illness. OH1 Indoor Conditions An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in the building will be exposed to an unacceptable risk of illness due to indoor conditions. The risks of illness due to indoor conditions addressed in this Code are those caused by — OH1.1 – inadequate indoor air quality OH1.2 – inadequate thermal comfort OH1.3 – contact with moisture OH2 Sanitation An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in the building will be exposed to an unacceptable risk of illness due to unsanitary conditions. The risks of illness due to unsanitary conditions addressed in this Code are those caused by— OH2.1 – exposure to human or domestic waste OH2.2 – consumption of contaminated water OH2.3 – inadequate facilities for personal hygiene OH2.4 – contact with contaminated surfaces OH2.5 – contact with vermin and insects OH2.6 – unsanitary conditions caused by exposure to human or domestic waste OH3 Noise Protection An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in the building will be exposed to an unacceptable risk of illness due to high levels of sound originating in adjacent spaces in the building. The risks of illness due to high levels of sound addressed in this Code are those caused by— OH3.1 – exposure to airborne sound transmitted through assemblies separating dwelling units from adjacent spaces in the building. OH4 Vibration and Deflection Limitation An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in the building will be exposed to an unacceptable risk of illness due to high levels of vibration or deflection of building elements. OH5 Hazardous Substances Containment An objective of this Code is to limit the probability that, as a result of the design or construction of the building, the public will be exposed to an unacceptable risk of illness due to the release of hazardous substances from the building. OH6 Privacy An objective of this Code is to limit the probability that, as a result of the design or construction of a building, a person in the building will be provided with an unacceptable level of privacy. OH7 View to the Outdoors An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person in the building will be unable to experience a view to the outdoors. OA Accessibility An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person with a physical or sensory limitation will be unacceptably impeded from accessing or using the building or its facilities. OA1 Barrier-Free Path of Travel An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person with a physical or sensory limitation will be unacceptably impeded from accessing the building or circulating within it. OA2 Barrier-Free Facilities An objective of this Code is to limit the probability that, as a result of the design or construction of the building, a person with a physical or sensory limitation will be unacceptably impeded from using the building's facilities. OP Fire, Structural, Water and Sewage Protection of Buildings An objective of this Code is to limit the probability that, as a result of the design or construction of the building, the building or adjacent buildings will be exposed to an unacceptable risk of damage due to fire or structural insufficiency, or the building or part thereof will be exposed to an unacceptable risk of loss of use also due to structural insufficiency. OP1 Fire Protection of the Building An objective of this Code is to limit the probability that, as a result of its design or construction, the building will be exposed to an unacceptable risk of damage due to fire. The risks of damage due to fire addressed in this Code are those caused by— OP1.1 – fire or explosion occurring OP1.2 – fire or explosion impacting areas beyond its point of origin OP1.3 – collapse of physical elements due to a fire or explosion OP1.4 – fire safety systems failing to function as expected OP2 Structural Sufficiency of the Building An objective of this Code is to limit the probability that, as a result of its design or construction, the building or part thereof will be exposed to an unacceptable risk of damage or loss of use due to structural failure or lack of structural serviceability. The risks of damage and of loss of use due to structural failure or lack of structural serviceability addressed in this Code are those caused by— OP2.1 – loads bearing on the building elements that exceed their loadbearing capacity OP2.2 – loads bearing on the building that exceed the loadbearing properties of the supporting medium OP2.3 – damage to or deterioration of building elements OP2.4 – vibration or deflection of building elements OP2.5 – instability of the building or part thereof OP2.6 – instability or movement of the supporting medium OP3 Protection of Adjacent Buildings from Fire An objective of this Code is to limit the probability that, as a result of the design or construction of the building, adjacent buildings will be exposed to an unacceptable risk of damage due to fire. The risks of damage to adjacent buildings due to fire addressed in this Code are those caused by— OP3.1 – fire or explosion impacting areas beyond the building of origin OP4 Protection of Adjacent Buildings from Structural Damage An objective of this Code is to limit the probability that, as a result of the design or construction of the building, adjacent buildings will be exposed to an unacceptable risk of structural damage. The risks of structural damage to adjacent buildings addressed in this Code are those caused by— OP4.1 – settlement of the medium supporting adjacent buildings OP4.2 – collapse of the building or portion thereof onto adjacent buildings OP4.3 – impact of the building on adjacent buildings OP4.4 – collapse of the excavation OP5 Water and Sewage Protection of Buildings and Facilities An objective of this Code is to limit the probability that, as a result of the design or construction of a building, a building will be exposed to unacceptable risk of damage due to leakage of service water or sewage. OR Resource Conservation An objective of this Code is to limit the probability that, as a result of the design or construction of a building, a resource will be exposed to an unacceptable risk of depletion or the capacity of the infrastructure supporting the use, treatment or disposal of the resource will be exposed to an unacceptable risk of being exceeded. OR1 Water and Energy Conservation An objective of this Code is to limit the probability that, as a result of the design or construction of a building, a resource will be exposed to an unacceptable risk of depletion. The risks of resource depletion addressed in this Code are those caused by— OR1.1 – the consumption of water OR1.2 – the consumption of energy OR2 Infrastructure Capacity An objective of this Code is to limit the probability that, as a result of the design or construction of a building the capacity of the infrastructure supporting the use, treatment or disposal of a resource will be exposed to an unacceptable risk of being exceeded. The risks of exceeding capacity addressed in this Code are those caused by— OR2.1 – excessive demand on the infrastructure OE Environmental Integrity An objective of this Code is to limit the probability that, as a result of the design or construction or operation of the building, the natural environment will be exposed to an unacceptable risk of degradation OE1 Air Quality An objective of this Code is to limit the probability that, as a result of the design or construction of a building, the natural environment will be exposed to an unacceptable risk of degradation due to emissions of greenhouse gases into the air. The risks of degradation addressed in this Code are those caused by— OE1.1 – emissions of greenhouse gases into the air OE1.2 – the release of contaminants, other than greenhouse gases, into the air OE2 Water and Soil Quality An objective of this Code is to limit the probability that, as a result of the design or construction of a building, the natural environment will be exposed to an unacceptable risk of degradation due to excessive release of contaminants into water or soil. OC Conservation of Buildings An objective of this Code is to limit the probability that, as a result of the extension, material alteration or repair of an existing building or a change in use of an existing building, the existing building cannot be acceptably conserved.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.